Geobge h



(No Model.)

I G. H. MILLER. COMBINED BOLSTER -AND STEP FOR SPINDLES OF SPINNING MACHINES.

Patented July 19,1881..

WITNESSESI INVENTORZ 'YUNITED STATES PATENT. OFFICE;

GEORGE H. MILLER, OF PAWTUOKET, Asslenoaon ONE-HALF TO SAMUEL E. woo OF-LINOOLN, RHODE ISLAND;

COMBINED BOLSTER AND STEP FOR SPlNDLES F SPINNING- MACHINES.

SPECIFICATION forming part of Letters Patent No. 244,644, dated July 19, 1881.

Application filed April 18, 1881. (No model.)

To all whom it may concern step to yield with the bolster to the effort of Be it known that I, GEORGE E. MILLER, of the spindle to adjust itself is the object of this Pawtucket, in the county of Providence and invention. I

State of Rhode Island, have invented a new In the drawings, a represents the spindle;

and useful Improvement in Combined Bolsters b, the sleeve-whirl secured to the spindle. c is 5 5 and Steps'forSpindles ofSpinning and Twist-' the bolster case or standard into which the ing Machines; and I hereby declare that the bolster and step areplaced. 1 is a .flange following is a full, clear, and exact description which rests on the bolster or spindle rail, and of the same, reference being had to the accome is a nut with which the bolster case or stand- 1o panying drawings, formingpart of this speciard is secured to the rail of the spinning-ma- 60 t. fication. chine. All the parts so far described are used 7 This invention'has reference to'an improvein spinning-machine spindles of this class;

ment in the step and bolster forspindles of The step and bolsterconsist of the tube f, in spinning andtwistingmachines; anditconsists which the step g is secured by means of a pin inthepeculiarandnovelarrangementbymeans passing transversely through the step 9 near 6 of which the step and bolster are united and its lower end, and through the tube f, so as to held against rotation, as will be more fully set form a pivotal connection. In place of the forth hereinafter. tube f a block of metal, in which a hole is bored t Figure 1 is a sectional view of my improved to receive the step g, may be used. step and bolster, shown in connection with a 'h is the bolster-tube connected with the step.

spindle provided with a sleeve-whirl and a 'g; also, by means of a pin passing transversely standard or bolster-case, constructed to be se-' through the step and the tube at right angles cured to the rail of a spinning or twisting mato the pin in the lower end of the step, so as to chine. Fig. 2 is a vertical sectional view of form a gimbal or universal joint andallow the 25 my improved step and bolster.- Fig. 3 is a bolster-tube to adjust itself in any direction horizontal sectional view of the same, showing and to allow of this free adjustment the step 9 the pins by which the bolster and step are. seis of less diameter than the holes inf and h.

- cured. y The piece f is of larger diameter than the In spindles as heretofore constructed, in bolster h, and is made to fit tightly into the 30 which the step and bolster are united by means bolster-case a, so that it is firmly held against of a woven tube extending over both, the bolrotation, and as the bolster h is secured to the ster and woven tube must fit loosely into the step 9 and the step to the piece f the bolster, case or tube in which they are held, so that while free to yield to the spindle, cannot rotate the spindle and bolster may adjust themselves with the same. I

35 to the true center of the bobbin carried on the The woven tube i forms a yielding packing spindle. In practice two difliculties have bebetween the bolster h and the bolster-tube 0; come manifest-viz: in starting the spinningbut this tube 0' extends only to the lower end frames provided with such spindles, or when of the bolster h, andis not affected by the mothe lubrication is imperfect, the bolster is liation 'of the bolster.

0 his to rotate with the spindle, and will cut or As the step is pivotally connected with the 0 wear the woven tube, particularly at the juncpiece f it will yield with the bolster and spintion of the bolster with the step, as the step is dle, particularly when the pin forming the less liable to rotate than the bolster;- then, the pivot is loosely fitted, and thus the bearing of continuous change in the position of the bolsthe spindle on one side of the step is prevented;

5 ter strains, tears, and breaks the woven tube and, as the bolster and step are-secured to- 5 at the joint between the step and the bolster. gether, the whole can be more readily with- When the woven tube is thus torn it becomes drawn when it becomes necessary to renew the difficult to remove the step from the tube and elastic packing t. replace the old woven tube by another. To Having thus described my inventiomlclaim 5o obviate these difficulties, and also to allow the as new and desire to secure byLetters Patent- 1. The combination, with the bolster-tube c the piecef, of larger diameter than the bolsterand the spindle a, of the piece f, the step 9, tube, and step g, secured together by means and tube h, connected together by gimbal-pins, of pins, so as to form a yielding connection, of as and for the purpose described. the elastic packing i, the whole adapted to be 5 2. The combination, with the bolster-case c, placed into a bolster-case and form a yielding :5

of the piecef,secnred in the same, the bolster bearing for a spindle, as described.

It, and the step 9, secured by gimbal-pins to GEO. H. MILLER. the bolster h and piece f, so as to make a nni- Witnesses: versal joint, as described. JOSEPH A. MILLER, J r.,

10' 3. The combination, with thebolster-tube h, WM. L. COOP. 

